You can adjust the settings of the barcode reader device (volume, speed, light, commands...) through the instruction booklet that comes with it, as it contains a set of barcode symbols. Each symbol has a specific adjustment function, and one of the most important things that must be adjusted is sending ENTER command. After the barcode number.
When the barcode reader device sends the item number to the screen, but the sale process is not completed except by pressing the “Enter” key, you must activate the enter key for the barcode reader device. That is, when the number is sent to the device, the reader must send the “Enter” command. To activate this, search in the instruction booklet for the device. Regarding the “Add CR Suffix” command, all you have to do is direct the reader to this code in order for this feature to be activated, and its form is usually as follows: